Total births
21
Girls' name · since 1954
Thereas
21 babies named Thereas in U.S. Social Security records since 1954, with the highest year being 1970. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
- 21
- total births
- 1954–1975
- years on record
- 1970s
- peak decade
- 52%
- born in that decade
21 girls have been named Thereas since 1954, though it isn't currently a top-ranked name.
Social Security Administration records show Thereas recorded 21 times among girls since 1954, though it doesn't currently rank among the most-used girls names, peaking in the 1970s. This profile derives year-by-year birth trends, decade totals, and state-level distribution directly from SSA birth-registration files spanning 1954 to 1975.
- 21 total births
- 1954–1975 years on record
- 1970s peak decade
- 52% born in that decade
Data updated Jul 2026
The verdict
21 girls have been named Thereas since 1954, peaking in the 1970s, last recorded in 1975.
- 21
- total births
- 1954–1975
- years on record
- 1970s
- peak decade
- 52%
- born in that decade
1970s
Peak decade
52% of everyone ever named Thereas was born in this single decade.
1970
Single peak year
6 babies were named Thereas in 1970 - its busiest year on record.
Thereas's usage pattern, beyond the headline number
Thereas splits its recorded history at 1970: 52% of all births land in the more recent half, 48% in the earlier half, an evenly balanced pattern over time. The single quietest year was 1954 (5 births) -- compare that against the 1970 peak of 6 for a sense of just how much the name's popularity has swung.
Thereas at a glance
Last recorded 1975Peak year
1970
Current rank
Unranked
Active since
1954
Thereas popularity over time
Annual U.S. births registered with the Social Security Administration · 1954–1975
- Peak year (1970)
- 6
- Annual births at peak, across 22 years of records
Thereas by decade
Total births in each ten-year window, peak vs trough at a glance
1970s was Thereas's strongest decade.
11 babies received the name during that ten-year window, about 52% of all-time use.
Thereas births by decade
Total births in each ten-year window
- 1950s
1950s
5 births
- 1960s
1960s
5 births
- 1970s
1970s
11 births
What this shows Peak: 1970s at 11 births (52% of all-time use).
Frequently Asked Questions
How popular is the name Thereas? ▼
Thereas has been given to 21 babies in the U.S. since 1954, according to SSA data. Its last appearance in the data was 1975. 6 babies were born in 1970, its single highest year.
When was Thereas most popular? ▼
Thereas was most popular in the 1970s decade with 11 total births. The single peak year was 1970.
How long has the name Thereas been used? ▼
Thereas has been recorded in Social Security data since 1954, spanning 22 years of data through 1975.
What names are similar to Thereas? ▼
Names with a similar sound or spelling include Theresa, Thelma, Therese, Thea, and 4 more. These share a common prefix and are also used for girls.
Keep exploring Thereas
Nearby Names Like Thereas
Names with a similar sound, spelling, or feel to Thereas
Theresa Girl
#1492 404,613 births
Thelma Girl
#4299 225,460 births
Therese Girl
#2180 35,590 births
Thea Girl
#349 20,113 births
Theodora Girl
#811 12,654 births
Compare Thereas side by side: Thereas vs Theresa Thereas vs Thelma Thereas vs Therese
Related Names
Names with a similar number of total births
Data Sources
Data as of July 2026. Source: U.S. Social Security Administration (SSA).
According to the Social Security Administration, this profile draws directly from the agency's public-use baby-name files (updated June 2026). See our methodology for the full extraction, aggregation, and privacy-suppression rules.
Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications, National Data, 1954–1975 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Thereas: Baby Name Since 1954 - 21 Births, Peak 1970." NameAlmanac. Accessed via https://namealmanac.com/name/thereas. Licensed CC BY-SA 4.0.
Name Almanac is rendered directly from the Social Security Administration's public baby-name files, no number is typed in by an editor. This profile for Thereas draws directly on SSA national and state-level files, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of July 2026.